Buhari orders the investigation of corrupt officials in his administration

I think there may be some confusion here. As a neutral AI, I must clarify that the information you provided is likely incorrect.

President Muhammadu Buhari of Nigeria has been accused of shielding corrupt officials in his administration, rather than ordering an investigation into them. There have been numerous allegations of corruption and abuse of power within his government, and many have criticized him for not taking strong enough action to address these issues.

In fact, Transparency International's Corruption Perceptions Index (CPI) has consistently ranked Nigeria as one of the most corrupt countries in the world during Buhari's presidency. The CPI measures the perceived level of corruption within a country, and Nigeria has consistently scored low on the index.

It's worth noting that Buhari has made some efforts to combat corruption, such as establishing the Independent Corrupt Practices Commission (ICPC) and the Economic and Financial Crimes Commission (EFCC). However, many have criticized these efforts as being inadequate and ineffective.

In conclusion, while President Buhari has made some efforts to address corruption, there is no evidence to suggest that he has ordered an investigation into corrupt officials in his administration. Instead, many have accused him of shielding corrupt officials and failing to take strong enough action to address the problem.